Casing for producing an air-tight chamber over or around a portion of the human body.



C. E. H. ARMBRUSTER.

CASING FOR PRODUCING AN AIR TIGHT CHAMBER OVER 0R AROUND A PORTION OF THE HUMAN BODY.

APPLICATION HLED SEPT. 2, 1914.

1 172,662. Patented Feb. 22, 1916.

3 SHEETS,SHEET I.

9 WITNESSES:

C. E. H. ARMBRUSTER.

CASING FOR PRODUCING AN AIR TIGHT CHAMBER OVER 0R AROUND A'PORTION OF THE HUMAN BODY. APPLICATION men SEPT. 2 1914.

1,172,662.- Patented Feb. 22, 1916.

3SHEETS-SHEET 2.

IN VEN TOR.

WITNESSES.-

G. E H Armrusfen C. E. H. ARMBRUSTER.

CASING FOR PRODUCING AN AIR TIGHT CHAMBER OVER OR AROUND A PORTION OF THE HUMAN BODY.v I

APPLICATION FILED SEPT-Z, I914.

Patented Feb. 22,1916.

3 SHEETSSHEET 3- CHARLES E. HJARMB UST R, F DENVER, cononano fem-TED CASING Fort PRODUCING:ANfA'IR-TiGHT CHAMBER oven on AROUND A- roItTIoN or Y THE HUMAN BODY.

all-z v hom it mdy concer n: I I 1 l v Be it known that 1, CHARLES ARM 3 ennsrnn, a' citizen of 'the United State'sjmesiding at Denver, the county of; Denver? anclStat-e of Colorado,- have nvented certain "new and'useful lmprovementsflin' aslngs for Producing an'Air- TightCharnber Over] or Around a Portion ofth'elHu-man fiQdy, of which the following is aspecification f'" U My invention relates to the-construction "of casings of the typeiused to produce an air tight chamber over oraround portion of;

' the human body, in the method oftreating j diseaseby vacuum and'airepressure, and its primary object resides in, providingacasung which may be readily applied to a hu-, man body to incase the of said openings and the surface, of the parts extending therethrough.

The casings shown in the" drawings and hereinafterito be ,desc,r1bed,,aren'1ore parr ticularly adaptedfor use in the system of cooperative devices for therapeutic-treatment disclosed in my application for patent,-Num her 859,908, filed ,synchronously. with the present application."

'" In the drawings in the; various, viewseof' parts are similarly designated, 1. represents a plan view of my im-g proved casing in the form which adapts it .7

which like Figure 1- for use to incase the thorax of a human body, Fig. 2, a side elevation of the same,

scale, in connection Witha flexible garment adapted to incase the legs of a body to whose, thorax the casing is applied,1 Fig. 7 ,a perspective view of the flanged elastic member whichlfo-rms part of the closing means ap plied to the openings of thepcasing Fig. 8 a section taken along the line 8 8, Fig.57;

Fig. 9, an outside elevation of one of the; closing means above referred to; detached Specification of Letters Patent V with the casing,- means having been taken on a-line',ll%l1;

portion tobeetreated and which around its one or more openings through which adjoining parts of the body" extend, has novel means for effecting an ain "tight'closure of the spaces between the edges fromth'e 'casingt-Fig. l0, areverse view of, the-same," and Eig. 11 anenlarged section V p Patent'edF eb.22,1'91 6l Application a a'se tembe a, 1914. SerialNo. 859,910. I

through the closing. meansin conne'cti'on .e

the section" through the Fig. 9.

, rReferring-morejlspecificallytotliejdraw-f'. ings, the..reference numeral 2' designates a 7, 0

casing composed of two 'compleinentary hams and 4 wh t p ane oftheir juncture are provided withloutwardly ex-' come the tendency to collapse, produced, by a vacuum. within the casingor to prevent studs "7 which project, through corresponding;

tending flanges 5 and 6. V V The two parts are f v 7 made of metal ofsufiicient'rigidity to; overdistortion when air of moretlian' -atrn os'.- l zphericnpressure isiintroduced into the. same; -The flanges on'one of the halves 'ha'vejheaded I,

v apertures in'the flanges of the;-other half,-".

and the latter are ,provide'dlwithihasps 8 i the casingfin air-tight connection.

The casing illustrated in Figs 1, Zand it has adjustable appliances to e ffect lair tight closures of the spaces between the rewhich by engagement 'with the' headed; ends l 1 of the studs, firmly clampthertwo halves of a g is particularly designed toincas'e the thorax or the bo'dylf It has to this end four open V ings which are proportioned and relatively positioned to receive the neck, the arms and the part olf-the body below the thorax, and

fspective edges of its openings and the surt face of ithe body parts extending therethrough. 1 v:

The above mentioned closlngappliances include a holding-element composed of two v complementary sections 9; which are 9O [.tached to thehalves of the casing to -conjointly encircle its openings. The two sec: 7

tions of the element, which. re identical in -construction, are-each composed of an ar- I cuatejjflatbody-member 1 O alongv its 'O1lte1I6dg6 has an outwardly projecting rim f 12. A second member 173 of similar. form, engagesthe outer surface of the efirstmentioned member within its rim,- and it is likewise provided along its outer edge with; w an outwardly projecting rim 14 which when the two partsare assembled, extends flush with the rim of the other partJ The two e sections are secured" in their cooperative relation, around the openings of the casingby meansof screws 15 Which extend through counter-sunk ope anings in therims .ofither bodv-members 10, into threaded apertures I of flanges 16 which are formed on the ca sing' around the openings, as I is-.bestshown in Fig. 11 of the drawings.

The member 10' of; each 'section rcarrieszz: upon its rim a pair of clamping devicesrfi V which by engagement with the rim of their. 7 removable-member 13 securely fagstenzrthevr latter in its proper position with relation to the body member.

The clamping I composed of leaf springs 17. which at one of their ends are pivoted on therimof thef i member lO'as' 'at 18,' and Which atftheir. outer extremities-are provided with "knobs 19 to engage the rimof'the p1ate'13. I 1 Thesprings have atitheir outer ends, i.in

' Wardly extendingfprojection's 20;" which? serve as stobs'ito prevent aoutwardinovement j of thelini'emberl3 when the springs are dis- H engaged: from itszrim; for the purposeiof adjusting the flexible b0d v-engaging mem-' ber h reinafter-to be describedfW V The members oirthe closing-{appliance Whichbv contact with the partsiof the body extending through the; openings of the. casing," effect :an airtight closureofthe' spaces;v around said parts, conslst' of sieeves' com posed of'wide bands 33, of ribbon orother;

resilient and elastic material provided with integral 'ion'gitudinai. flanges '29 which .ex-j

of the drawings, I for engagement-with the parts of the body around which" they -are applied. V The" bands are fastened in their operative positions on the sections of the closing'ap;

I piiancesby clamping their flanges between the members 10 and 13 of the same and they" are secured against displacement- 'bvmeans I of stud bolts 30 which project from the body members of the sectionstliirough aper- I tures 38 in their respective -flanges, Washers'-' 31 which are placed onthe bolts to'enga-gef the outer surfaces. of the I flanges-"and; nuts 32 Whichare' screwed on'theboits tci=drive the washers against said surfacesr The removable members 13 0i the-"- sec- I tions are provided with recesse's #12 to clear the above-described I fastening appliances when in their proper position with relation 5 to the respective bodymembers; and they 5' (16371068; c are preferably 4 which the bars are associated their lnnert ends},

chronism. 7

are secured againstdisplacement by means of dowei'pins on the body rnembers which are fitted in corresponding openings in the.

-Whenthe elastic members of the closing-appliances arethus secured on the respectiveseetions ot theIholdingaelement of the same,

the concavemiddle portions of :the bands ofwthe sections, While their end-portions pro? extend-stint substantially: concentric relation-Q 1 tdtheinner edgesof the 'arcuate members ject: outwardly beyond 1 the -outer1edg eS. i011 i the SQC tiQIIS iO provide'hand holds for the adjustment of the flefiiible -membersim the operation of the invention, which wilt here; 1 inaften be-deseribed, The rims .OfillflrbOdY:

members of; the {sections 5. have. to; thisllend. beenpnovided at their outerendsiwitiifslotsr; ,;thmtgh1iwhich the flanges ot the iflexi-ble member, looseiy; extend. I. v The; portions of;

the jbtnds'at oppositersides of, their respec cot; beyondthe-sides Oiitho. f

sections'lto iv hich they I are, secured and jwhenz;

the sections are secured inatheir cooperative relation arouud aniopenin gof ptheicasing; as I here nheitoreo explained, the I concavem ddl'e I portions ,oflthe b iindsf' provideliconjointly a flexible sleeve. which ,encircles thei part. 1 of the body extending through said; operiing. ..v

For the adj "lstmenttof, the flexible; s1 emf thus toiunedj tof tightiv engagea part Ofithh; I

body extending; through "the same; thessecs tioirsfto-Wh'ich the parts-of Whichsaid sleeve is composed are provide'dgat their;adjoins, mg ends, 1 with inwardly] sliding I I longitudia tioii Which are 'moun'ted iim pairs on;

members of each section to, engage the arouatejporti ons 465 oi the. bands} at "oppositq,

sides of their; respectiif efianges; Tiie.,bers are mounted on tl'ie inernb,ers 1O 'and13Jby ,1'

Ineansoffscrews 2,3 whi hflproject through iongitiidihal s1 otsfin one of their -sides -which W he flat againstthefaces of then embers With; v.

Th' zbars areprovid d at vvithfhe'adsfl l the inner faces of which are. curved v to ,engagerthe arcuate' portions ofrthe bands at opposite sides, of} their flanges, and j the bars-on one of th'emembers .ofxeachisec tiorr'are providedatktheirouter ends with s plns 27 which proj ect; through openings in: 1 the ends' of the corresponding bars; on: the

other members of the-sections, for. the-4pm- P iOfT compelliiig the pairs of bars of op; ctions; to slide in Syn posite' endsof the se Tdiiinit displacementiof ithe bands com- I posing thebod iencircling-flexible sieeves'of the" cl'dsing apiia'nces', bylateral deflection-0f their respective :fla'nges .I" have provided curved 'Ishhtter biade's- 22 which at .one, of] their ends are pivotaliy attached to the heads?" I 24 of the" push'cbars as se -25 "and Whichare pressed gently toward the 'outersurfttces; of

the. curved portions 46 of they bands, by

means of springs 26.

ofjthe sections, overlap at theirouter ends,

andextend exteriorly of the curved portions of the respective bands-in substantially parallel relation. to the flanges of the same.-

From the above description, it will beseen that the closing appliances around the several openings of the casing, consist each of a holding element composed of two complementary sections which .hold; in cooperative relation to each other the bands'which conj jointly provide theelastic sleeves to-encircle the parts ofthe body extending through the said openings, and which carry means for the adjustment of said sleeves to conform with the contour of the body parts to eifect an airtight closure around the same.

When the casing has been placed around the portion-ofthe body to be treated, andthe halves of which it is composed, are clamped together, the operator adjusts the'elastic sleeves around the parts of the body which extendthrough the openings of the casing,-

- in the following manner The movable clamping members 13 of the sections of the a closing appliance, are first of all, loosened by outwardnidvement of the springs 17 to disengage the rims of the members. When the springs are adjusted so that their knobs 19 engage the rims of the body members of the sections, the projections 23 of the same exj-Y tend over the rims of the respective members 13 and thereby limit theirdisplacement'with respect to the body-members. The operator now grasps the ends of the flexible members which project beyond the outer ends of the push bars, and by drawing said ends simultaneously outwardly, compels i the curved the body, extending through the sleeve ,of

which theyform part. ;The flexible members part of the body-is completed by mov'ingthe push-bars inwardly until the curved por-f,

tions of the bands conform with the contour of the said part. Now,'when in the opera-;,- t on of the system of which the present 1n: vention forms part, air is exhausted from the jc'asing,ithe atmospheric pressure on the portion of the elastic sleeve, exteriorly-of the "same, 'LWlll effect an air-tight closure around the part of the body withwhich said, sleeve engages, and wlien'compressed air is admitted tothe casing, its pressure on the portion of the sleeve within the casingwill produce a similar effect, it being understood that the shutters 22fprevent displacement of the sleeve'by limiting the deflection off-(their flanges means ofwhich is secured to thesections of which the holding-element of j j I ,the closing appliance is composed. The blades 220p the bars ofeach member In the casing shown in Fig. 1, the shutters around the arm openings have been omitted as their proximity to'the armpits would-- I hinder their adjustment.

vat the inner sides of the closing appliances 1 used for securing the two halvesof the cas--,-

ing; The member 36 has a central opening '1 which is closed ,by a glass plate 38 beneath Iwhich is, secured a gage 39 adapted to indi? 'cate the degree of'airipressure within the:

casing. ,A nipple 40 on the lower half off the casing is provided for the attachment of a tube or pipe connected with an air pump .bytheuse of which air is exhausted from the casing or air {under-,pressure-is supplied. 1; to thesame, When the casing, ls-used n .conection with a flexible garment such asis f shown at 41 in.F1g.'6, an air-t ght connection between the two elements is effected by securing the open end of the garment,

around one of the openings ofthe casing after the shuttersandthe elastic bocly engag ing members ofthe corresponding closingappliance have been detached- The connection'of the garment with. the casing, may be' effected either by clamping. theedge ofthe garment around its opening between the members 10 and 13 ofthe sections, 9 or by providing the garment with a flange which inform corresponds tovthe combined inner members 13 of'thesection, and which when placed within" the rim of the body members 7 ofthe sections,.is clamped inposition bythe H V springs 17. i

portions of the bands to engage thepart of Inthe form of invention shown in Fig. 3, the casing is'tubular andwprovidedat its opposite ends with closing devices similar to those hereinbefore described In the construction illustrated in Fig.7

.the casing is made in the form of a helmet likewise made of twoparts and provided at its lower end with closing means of-the characteridescribed, and in it's front with a 1 glass covered opening through which the After the casing shown in Fig; 1 is ap-=- plied around the thorax of abody and the -fromthe casing or air under pressure sup: phed thereto by the action of a pump connected with1the'nipple4r0. This form of my invention is particularlyadapted for l the treatment of consumption of the lungs,

and {when the rubber garment 41 is used in onnection, with the casmg, t e treatpneumonia or other pulmonary J diseases} 1-15,, 'features of a patient'around whose head the l s casing is applied, may be observed..f' I I V ment is I aided, by inducing a flow "of -blood tothe lungsto relieve the heart and feed diseased tissues, each time a partial-vacuum; is produced -Within the casing; and i'the therewith communicating garment i is in consequence forced to hug the loW-en per--- tions of the body by pressure of the-at mospherer 1 I The casinga illustrated-V in Fig. 3, is

ladapted to be used-onthe limbs of apati'ent for-theprincipal purposeof producingartificial hyperemia- 1n case zoii mal-nutri'-= -ment of difl'erentparts of the body; byrthe following claims:

1. A casing for producmgnn: alr-tight" cover in 1 tion o-i anemia, andthe h'el-metshoWn in Figwel is particularly adapted for the pur'- pose of forcing air directly: into the :lungs anddrawing it out again to 'arti-ficially'pro duce respiration in case of :asphyxiationr Having thus described my invention 1 desire it understood that my improved 'cas- .i'ng maybe made-in forms other than those",

showinto be used'in the therapeutic treat method. hereinabove described; and. that they construction or the means-for closing the spaces between the parts-of the body ad joining-the portion to betreated; and the edges oi'the openings through Which these parts extend; may i be varied mdthin the spirit of any invention as defined in the;

chamber over orarounda portion ofthe human body; composed of two parts and havingan orifice for the'exhaust or ad-': mission ofiair and at the-junction of saidparts, an opening to receive a part of the body adjoining-said portion, means for-se curing the parts ofthe casing; in air-tighti connection, and means for effecting an air tight closure of the space between the edge) of said opening and a part of the bodyzex tending through the same, COiHPOSGdI Df COT operative complementary sections which "are applied around the opening": toethe twfo vpartsuoit theicasing;

to receive a part of the bod adjoiningsaid" portion, and means for effecting anairtight closure of the space between theedge of said opening "and 'the'part of thebody extending through the same, including-ya flexible sleeve having-i intermediate" For its ends, a circumferential flange; "which "holds the sleeve "Within" the opening and "closes. the surrounding space of the same, whereby the sleeve" extends partially Within the cask:

ing andpartially =eXte'r-iorlj of 'ithe'same'.

4. A casing for "producing 5' an 7 air-tight chamber over or around a portio'i f of the human --'bedy' havlng; an or fice for :the *exl-i haust =oradmission: of Fair," and an opening to "IBQGIVB a part ofthe body ad 'olning said portion; andineans for effecting fan air?-ti ght.

closure ot the space" between 1* the edgejoi said-opening and the'part of the bodyex x' ble 'slee've havlng'iintermediate of lts ends, 1 a circumferential cfiafngen which -holds'the sleeve Withinfthe opening 'and clo ses the stir-1" tending throughthe same, including; a vfiex'irfi and partially 'eXteriorly of fthe 1 same; and

adj ustable means 'forcompelling said sleeve rounding "space" of the same, whereby thesleeve extendspartially W thinthe casing to engage and conform lwith'ia apart ofithe 5. A casingzffoiir producing yan; air-tight chinnber over or: around: a portion *of "the human *bodygfhaving an; orifice for the exa v haust. or admissi-onr of an; and an z opening to rec'erve a ,part of the bodygadpinin'g :sa d port on; and means for effecting an air-tight closure of the "space between the edge" of said "opening and the part. of the 'bo(ly; eX-; tending throughthe same,;includirig a flexi ble sleene having intermed'ilateiof its ends, a J circumferential; flex ble flange; whiclr holds the sleeve within the openmg; and closes the surronndingspace of the same, whereby j the 1 sleeve extends partially Within, the casing and partially exteriorly'of the same, the said fiangeibe'ing fo-rmed to provide; an air-chunk beratthiine along which it joins the sleevefor the purpose specified;

6.IA"casing for producing an air-tight a charr' ber.v over '1 or around a portion of .fthe, human body, ha-Vm'g an orifice for the, ex

haustlsor admission of air, and an opening to] receireza part of the body; adjoining gsa-id portion, and means for effectingannirtight closure of the-space between the :edge of said opening and thepart oftthe body extending through 'the same, ncluding a flexlbleslcevcf having intermedlate of its ends iCllYCIlIH fGT-V. 1

ential, v flexible flange-which holds; the sleei Within the opening and closes the surround,

ingspace, of the same, whereby [the sleeve one tends, partially within the casing hand pare tially exteriorlyi'of "the, same, adjustable means for compellingithe. slecx'e to engage .2}

and conform ivith' a part ofzabody itfencin cles, and means for preventingdisplacement of saidsleeve by limiting lateral deflection;

of its flange.

7 A; casing for producing an i air-tight chamber over or around. a portion of the 1.

human body; having: an orifice 01- theex= .0 tends partiallywithin the casing and paropening and the part of thebody extending through the same, including flexible'sl'eeve CllSPOSBd within the opening and having a human body, having an ,orifi c'efo r the ex- 'haust or admission of airy-andan openingto receive a part of theybodyadjoining" said haust or admissionof air, 'and an opening to receive-a part of the'body adjoining said P01131011, and means foreffecting an air-tight 'clos'ure'of the space between the edge 'of'said opening and the part of the bodyextending through the same,'including*a flexible sleeve having intermediate of its ends, a circumfer ential, flexible flange which holds thesleeve within the opening and closes the surrounding'space of the same; whereby the sleeve ex tially exteriorly'of the same, and means'for preventing displacements of" said sleeve by limiting lateral deflection of its flange. "-i

8. A casing for" producing an air-tight chamber over or around a portion of "the human body, having an orifice for the ex-. haust or admission of air,-and an opening to "receive apart of thebodyadj'oining said portion, and meansfor eflecting' an air-tight closure of the'space between the edge of said circumferential flange, and 'a holding element secured to the casing and adapted to secure the sleeveyby; engagement with its flange. 1

oasing'for' producing an air tight chamber over or around a portion of the portion, andjmeans'for effecting an air-tight closureof the space between the edge of said opening and the part ofthe body extending through the same, including a flexible sleeve disposed within 'the op ening' and' 'liaving a circumferential flange, a, a holding element secured to the casmg and adapted to secure the sleeve by engagement with its fiange,and adjustable means on said element, for compelling said sleeve to engage and conform with a part ofthe' body'it encircles;

v 10. A casing for producing an air-tight chamber over or around a portion of the human body, having an orifice for the ex- 1 haust or admission of air, andan opening to i receive a "part of the body adjoining said portion, and meansfor effecting an air-tight closure of the space between the edge of said opening and the part of the body extending through the same, including a flexible sleeve disposed within the opening and having a circumferential flange, [a a holding element secured to the casing and-adapted to secure the sleeve by engagement-wlthits'flange,v

and push bars slidable' on said'element to engage the outer surfaceof the sleeve for compelling it to engage and conform with a part of the body it encircles;

1 11. A casingfor producing an air-tight chamber over or around aportion of the human body, having an orifice for the exhaust or admission of air, and anopening to receive part: of' the body oining id portion, and'means forie'flectingan air-tight" V closure of the spacebetween the edge of said 'opening and the-part of the body extending through-the same including a flexible sleeve disposed within the opening and having a circumferential flange intermediate: "of its ends, a holding element secured to the'casing and adaptedtossecure thesleeve byengage- 1 merit with its flange, and push bars 'sli'dable "onjsaidelement'td'enga'ge the outer surface of the sleeveat'opposite sides'of thefia'nge of the same; for" compelling the sleeve to feng'age an'cl 'conform with apart of the body 7 I l f i i ,1 A 12.-A-casing forfproducing an air-tight it encircles; I

chamber'over or around a portion of the "human-body, having an orifice .fon the ex- 'haust or admission of air, and anopenlng tofr'eceivea part of thebody'adjoining said portion, and means for elfecting an air-tight closure of the space between'the edge of'said i opening and-the part offthe body extending through the same,"including a flexible sleeve disposed within the opening and having .a

f circumferential flange, a holding element secured to the 'casing-andadapted'to secureif ing it to engage andconform with a part o'f the sleeve. by engagement -with its'iflange, 'push-bars'slidable on said element to engage the outer'surfa'ce-of-the sleeve for compel'lj j V the body it encircles, and shutter blades on.

closure of the space between the edgejofs'aid opening and the part of thebody extending fthrough'the same, including a flexible sleeve disposed within the opening and having a circumferential flange, a holding element se cured to th'ep ca sing and adapted to"s ecure j the sleeve by engagement 'withiits flange,

" push-bars slidable on said element to'engage thefouter surfacelof the sleeveiforcompel-lingit toflengage and conform with apart 'ofthe" body it encircles, and shutter blades'carried' on said push bars adjacent the sides of the flange for limiting lateral a fi ai mf the same. r I

A a as producing; an air-tight chamber. over; or around a portionof the human body, having a-n. orifice for .the Vex V haust or admis'sionof-air, and-an opening to receive a part of the body' adjoining s id portion, and means for effectingan air-tight closure of the space between the edge offsaid opening and the part of the body extending through thesame, including a flexible sleeve disposed within theopening and having a curedtov the@ casing and adapted to: secure the sleeve by engagement w th, its flange, jpush bars slidable, on said element toengage the outer suriace of the sleeve for compelling circumferential flange, a holding element secured to the casing and adaptedtosecure the sleeve by engagement with its flange, push bars slidable on said 'element,- tov engage the outer surface of the sleeve flfor-compelling itto-engage and conform with a part 1 of the body itencircles, andfshutter-blad es pivotally mounted on said push -barsg and extending adjacent the vsides: of lthetfiange for limiting lateral deflection of the vsaigne.

15. A I casing for producing a n a.i1; -.tight chamber over or around;a portion of the human body having-an orificefor the exhaust :01, fldmI SSIOH Of any and" an open ng to receive a part of the body adjoiningf'said portion, andimean s f or effectingan air tight closureo'f the space between 'theedge oftsaid opening and the part of the body extending throu ghfthe same, including. a fieiziblelsleeve- "disliwosed w thin the opening and hav ng a ciroinnferentiallfiange; a holding elementse itfto engage and conforrnfwith; a part. the body it encircles and spring-pressedshutterblades pivotally mounted on said, piish bars and extendin v adj acntf. the i id s .t or ilthe flange for li niting lateral deflection offthe I v chamber over ioi'z'aro md 16.]A casing; for lpriiduciiig a; portion 7 of the orifice'tforlthe exhumambody," having ,an'

haust or achni ssion of air, and angoperiiiig to, receive a part of the body adjoinmg; said p'ortiom and means for efieeting an-airtight elosnreofthe-spacerbetween the gedg'e ol 'jsaid dine through the same, a flexible sleeve disposed Within the openingand having a opening and jthe part otthe} body" exten circumferential.flange,a holding "e1 einefnt seoured to the casing and adapted v to secure the sleeve by engagement with itsflangegand adjustable means ion said element; adaptedfto engage the sleeve for eonrnoelllng- .toengage andaconfor m with a. part ofthe body it en circles, the said sleeve having outwardly projecting wings for itsimanual adjustment. 17. A casing for producing an air tight V ,chamber over or around. a portion otthe human body, hav ngsan orificeffor-gthe exhaust or admission 50f air, andv an opening v toreceive apart'ofgthe body-adjoining aid portion, and means for effecting an'airi v A" velosnre of the space between the, edge of said ght opening, andlthe partfofi the body extending;

through the-same, including a fl iexiblefsleeve disposed within the opening. and composed f two v p oti's l d th the Jewel mentaryl-portiolns of a oircumferenti flange of the sleeve and with outward-ly proj eating 1 portions, for the manual adjustmentofythe sleeve, holding element secured tothe casing and adapted to secure the halves of han -t or admissiono'lxair, and an open;

.the sleeve by engageinent, 'w ithgtheir respec I tive fiange portions, and achustable means onas'aid element -.adapted' to engage w the exterior surface a of the sleeve forv compelling at toengageand conform with a part of the body it encircles.

f 18. .A casing for 'producing an" air-tight E chamber over or around a portion oi-the human body, hav ng an orifice for theexhaustor admissioraoi' aiigland' an; opening:

to receive a. p'art of thebody adjoining, said portion; and means fo1 eileot ng: (Infinitt eh c ure o h ep 'eei ev e e d of said opening and vthe part on the body. extend ng, through Ether eame, neluding a i fi'eiiible sleeve disposedwithin the openi and composed ,;of two 'halves provided evith the complementary portions of a cirenmfer je itialgflange of the sleeve, anda holding, element secured to thecaslng and composed a two cpnipleinexoftary f secti'ons, adapted jto s'eeure the-sleeveby engagement Wllllhtllf: "fiaingemort ons ofits-halves A '19. Al casing? for producing an Q chamber over or :around a portion oi -theia hum'an 'body, hav ng; an orifice, for th tojreceivea part "of the body adjoining said 7 portion, and means for efiecting an; airtight closure of the spacebetween-the edgev of saidliopening and thepart of the bed nten diiig through theisa'me; inclndinga-i blesleeye disposed within the opening and-l cornposed oii two halves provided with the J ooinp len entlaryi portionsciroumiie renan! i H 91 tnesleene, and 'a holdingggeler; imentsecnred to the-casing and. composed iot two complementary sections5 adapted to ee I cure :the "sleeve by engagement iwithgflthe to, ir eive one of said .fiangev portions tween, them, i-(and adyustable mean clamping sald members together. a I

20; A casing lo'riproducing an 'ai ,haust or admission of "air, and'an opening to receive a part of"the;body adjoiningQsaid H a a etile V ehamber over or around a portion of lthe flange-portions of-its halves and each composed of two members relatively disposed ,portion, ,andvmeans :for effecting an air tight closure of the space between theQedg'ei s eoure lithe, sleeve by engagement with the respective portions "of the lfiange, and gp ishz ibars slidable on. said sections to'en age the i i sleeve for compelling it toenga'ge and con-'5 form2 with a part i of. the body" it encircles.

" 21. A casing fer producing an airktight 1 chamber over or aroundia portion 7 of the human-body; havingfan orifice: forlthe ex -1:.

haust or admission of air, and an opening portion, and means for eifecting an airtight closure of the space between the edge of said opening and the part of the body eX- tending through the same, including a flexible sleeve disposed within the opening and having a circumferential flange, a holding element secured to the casing and composed of two complementary sections, adapted to secure the sleeve b en a ement with the respective portions of its flange, and push bars slidable on said sections to engage the sleeve at opposite sides of its flange for compelling it to engage and conform with a part of the body it encircles.

22. A casing for producing an air-tight chamber over or around a portion of the human body, having an orifice for the ex haust or admission of air, and an opening to receive a part of the body adjoining said portion, and means for effecting an airtight closure of the space between the edge of said opening and the part ofthe body extending through the same, including a flexible sleeve disposed within the opening and having a circumferential flange, a holding element secured to the casing and consisting of complementary halves each composed of two members relatively disposed to receive corresponding portions of the flange between them, and means'for clamping said members together, and push bars slidably mounted on the members of said sections, to engage the sleeve for compell- 7 Copies of this patent may be obtained for five cents each, by addressing" the Commissioner of Patents,

ing it to engage and conform'with a part to receive a part of the body ad oining said of the body it encircles.

23. A casing for producing an air-tight chamber over or around a portion of the human body, having an, orifice forthe eX-, haust or admission of air, and an opening to receive a part of the body adjoining said portion, and means for effecting an airtight closure of the spacebetween the edge of said opening and the part of the body extending through the same, including a flexible sleeve held within said opening and having means for its adjustment to engage a part of the body it encircles.

24:. A casing for producing an air-tight chamber over or around a portion of the human body, having an orifice for the exhaust or admission of air, and an opening to receive a part of the body adjoining said portion, and means for eflecting an airtight closure of the space between the edge of said opening and thepart of the body extending through the same, including a flexible sleeve held within said opening and having means for its adjustment to engage a part of the body it encircles, and adjusts able means for compelling the sleeve to conform with the contour of said part.

In testimony whereof I have aflixed my signature in presence of two witnesses.

CHARLES E. H; ARMBRUSTER.

Witnesses:

F. H. CUNo, L. Rnonnns.

Washington, D. G. 

